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7 terms
Photonics Dictionary
Clear All Filters x
rear-projection screens x
amplification
->
gain
Also known as amplification. 1. The increase in a signal that is transmitted from one point to another through an amplifier. A material that exhibits gain rather than absorption, at certain...
gain
Also known as amplification. 1. The increase in a signal that is transmitted from one point to another through an amplifier. A material that exhibits gain rather than absorption, at certain...
lensometer
An ophthalmic instrument used to measure the magnitude and direction of the maximum and minimum powers of a spectacle lens, and mark the optical center of the lens by an ink dot. When the lens to be...
lenticular screen
A rear or front projection screen composed of minute optical surfaces that introduce a spread to the light beam that conforms approximately to the light distribution requirements of the application.
microfilm reader
A device used to view microfilmed documents where the image on film is projected, in magnified form, onto a rear projection screen for viewing.
screen
The large, usually flat surface onto which an image is projected for viewing. May be reflecting or transmitting (rear projection).
television projection
A television display system in which the television signal is converted to an image that is projected onto either a front or rear projection screen.
Photonics Dictionary
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